Spinning-spindle and bearing therefor.



PATENTED DEC. 31, 1907.

O. H. CHAPMAN.

SPINNING SPINDLE AND BEARING THEREFOR.

APPLICATION FILED FEB-8. 1907.

' the slot.

UNITED STATES PATENT OFFICE.

CHARLES H. CHAPMAN, OF WINCHESTER, MASSACHUSETTS.

SPINNING-SPINDLE AND BEARING THEREFOR.

Specification of Letters Patent.

Patented Dec. 31, 1907.

Application filed February 8. 1907. Serial No. 356.470.

State of Massachusetts, have invented a certain new and useful Improvement in S inning-S indles and Bearings Therefor, of which t e following is a full, clear, and exact description.

The present invention is in the nature of an im rovement upon the invention for which ireceived Letters Patent N 0. 841,485, dated January 15, 1907.

As in the invention of the patent, so here, the spindle is su ported in a bolster which is provided with all-bearings at its bottom and to and these ball-bearings afford the active earings in which the spindle turns.

Differing from the invention of the patent, the bolster itself is longitudinally and laterally yielding and has an unyielding Iportion by which it is suspended within the olster case. Thus I am enabled to dispense with the sleeve of the invention of the patent. The sleeve-whirl is frictionally engaged with the interior of the whirl-base, instead of beinglexteriorly engaged therewith, as in the patent, and the whirl-base instead of the whirl has the flange which cooperates with the stop-pin.

These and other features, as hereinafter particularly pointed out and claimed, constitute the invention herein.

In the accompanying drawing, illustrating the invention, in the several figures of which like parts are similarly designated, Figure 1 is a longitudinal section, with the spindle and bobbin broken out. Fig. 2 is an elevation of the upper section of the bolster. Fig. 3 is a longitudinal section of the upper section of the bolster with its parts disconnected, the section being taken through Fig. 4 is an elevation of the lower section of the bolster. Fig. 5 is a top plan view of this lower section of the bolster.

The bolster-case 1, has the oil-well 2, and the screwthread 3, nut 4, base 5, lubricating arrangement 6 and upright 7, substantially as in the patent referred to, or all of these parts maybe of other a proved construction.

The spindle 8, has t 1e cylindrical portion 9 to fit into the top of the bobbin, and the blade of the spindle tapers very slightly to a point below the cone 10. This cone-has a aterally-projecting, upwardly-flaring ledge 11, and below the cone 10 is a stop-collar 12. From a point below the cone 10 and above the stop-collar 12 the spindle tapers quite rapidly and terminates in an inverted cone 13, which preferably is hardened.

The upright 7 is counterbored and shouldered at 14 to receive the cylindrical portion 15 of the upper section ofthe bolster. This section is screwthreaded internally at 16 and slotted longitudinally at 17, and above the screwthreaded portion it is flared out and provided with a shoulder 18 to receive and support a ball-race cup 19 of hardened steel which confines within the up er section of the bolster a series of bearing-balls 20' which run upon the cone 10. The cone 10, bearingballs 20, and ball-race 'cup constitute the upper ball-bearing or bolster-bearing for the spindle.

The lower section of the bolster is composed of a tube 21, provided with a spirall cut slot 22 which makes the tube longitudinally and laterally yieldin or in other words, makes it a spring. e upper end of the tube is provided with the screwthread 23, divided by longitudinal grooves 24, and by means of this screwthread 23 the lower section of the bolsterv is adjustably connected with the upper section thereof, as indicated in Fig. 1. When the proper adjustment has been made, the upper and lower sections of the bolster are fixed by means of the pin 25, passed through the upright 7 and the slot 1 7 and into one of the grooves 24.-

The lowerend of the tube 21 is provided with the ste 26, which is forced into the said tube and manner, as by soldering at one or more points 27 through the holes 28 in said tube 21. This step 26 has a central aperture 29 for the escape of the lubricant and also'for positioning the bearing-balls of the lower ball-bearing. This lower ball-bearing comprises a seat or race 30 made in the u per portion of the step 26, and the bearing-balls 31 placed in said seat or race, and which surround the cone 13 of the spindle.

The whirl-base 32 is secured to the spindle in an suitable way, and is adapted to frietiona 1y receive the bobbin 33. This whirlbase is counterbored or recessed internally secured therein in any suitable from its bottom, as at 34, and ends in a laterally projecting bottom flange 35 which cooperates with the stop-pin 36.

The sleeve-whirl has its sleeve'37 forced into the cavity 34 in the whirl-base, and is thus securely connected withthe whirl-base and by it with the spindle.

38 is the whirl and 39 the driving-band.

It will be observed that the counterbore of the whirl-base is sufliciently large to receive the upper portion ofthe bolster containing the upper ball-bearing and the whirl, and the connection of the sleeve with the in terior counterbore is sufiiciently tight to insure the positive driving of the spindle. By this construction the spindle may berun in either direction, as required, without liability of the whirl becoming loosened from the whirl-base. By providing the whirl-base with the horizontal flange 35, instead of putting this flange on the whirl, said flange not only cooperates with the stopin to limit the upward movement of the splndle, but it materially strengthens the lower end of the whirl-base against the outward pressure caused by forcin u ward the sleeve of the whirl into the whlrlase with such force as to insure against the possible loosenin of the whirl from the whirl-base, and also 0 viates the objection inhering in the old form, of the tendency to loosen the whirl from the whirlbase by the continual knocking of the flange against the stop-pin. By the present construction," an improved contracted, cylindrical sleeve-whirl is produced, by which a spindle may be run in either direction, and t e whirl may be of regular or standard diameter, requirin no change in the diameter or speed of t e driving drums of spinning frames now in use.

In ractical use, it has beenfound desirable to al ow the. spindle a slight upward movement to enable the horizontal flan e to strike a slight blow against the stop-pin, in order to. loosen the bobbin from the spindle and obviate the necessity of pulling it ofl by force. This avoids the possibility of the spindle being sprung out of true, and it also facilitates the work of dofling and of piecing up broken ends. v

The parts are preferably assembled as follows :The cone 10 is forced down upon the spindle into place. The stop-collar 12 is forced u into place on the spindle. The bearing-bails 20 are arranged in the ballcup 19 and the upper portion 15 is ap lied to the spindle, cone, and ball-cu an its flared upper end is set about the rim of the ball-cup, as shown in Fig. 1. The shouldered construction of the upper section serves to aline this portion and the ballcup in order to form a proper ball-bearing. The ledge 11 on the cone prevents the balls 20 from being displaced while the step and its balls and the lower section are being adjusted. The whirl-base is next placed upon the spindle. The ste 26 is next firmly fixed in the lower en of the lower section of the bolster and a tapered pointed pin is passed up through the perforation 29 in the step and the balls 31 of the lower ball-bearing are dropped into the seat 30 provided for them and surround the inserted in. The lower section of the bolster, with t e step and balls therein, are placed up and around the lower end of the spindle and screwed. into the u per section of the bolster, until the spind e fits without vertical or lateral movement in its bearing, the temporary pin being withdrawn. The interlocking of the pin 25 and the Vertical slot 17. andgroove 24, ,as above described, results in obtaining a very nice adjustment of the spindle in its bearings. The whirl is next laced up and around the bolster and force into the recess in the bottom of the whirl-base. The spindle, bolster, bolsterbearing and step bearing must be assembled before the whirl can be forced up and secured to the whirl-base. The spindle, cone, bolster-bearing, whirl-base, step-bearing and whirl having been adjusted and the vertical slot in the upper section of the bolster placed in position with one of the slots in the lower section, the spindle and bolster are placed in the bolster-case and down against the shoulder and the pin 25 is inserted and made fast. This pin engagement prevents the bolster from rotating with the spindle and also locks the adjust ment of the bolster. The stop-pin is then turned around until it overhangs the horizontally extending flange '35 on the whirlbase, thereby preventing the spindle and bolster from being pulled out of the bolstercase. The whirl at the point of the handpull is smaller in diameter than the bolsterearing.

The bolster is made to have an easy slipfit in the upright 7 of the bolster-case, butis smaller below the shoulder 14 and out of contact with the walls of the oil-well of the bolster-case, and this lower section of the bolster being spirally slotted, and therefore flexible laterally and longitudinally, admits of both lateral and vertical movement.

The purpose of the stop-collar 12 is to limit the spindle, or when the spindle is slightly above the center of the band-pull, predomi-z:

imperfect, the greater part of the load being ranged to move together laterally and vertinates over the lower and shorter end of the s indle and thespring-bolster then takes on the gyration and the upper ends of the spindle and bobbin run quite steadily. In carrying an unbalanced oad, it is important to keep a perfect adjustment of the lower end of the spindle in the step-bearing, and this is effected in the present invention, since thetension caused by the band-pull acts to force the step-bearing into perfect adjustment on account of the contact of'the bolster-bearing balls with the downward and outward taper of the cone 10. The tendency of the band-pull is to cause the cone to add a downward pressure suflicient to adjust the spindle in the step-bearing when the adjustment of the step-bearing and bolster-bearing are-quite loose. Y

The lubrication in the present invention is very thorough, since the reservoir is filled with oil which flows thence into the oil-well and is carried upwardlyon the spindle by centrifugal force, owing to the increasing diameter of the spindle, and is spun out and thrown off at the extended ledge on the b0l ster-cone directly onto the balls in the up er bearing, thereby keeping them continua ly lubricated. This movement of the oil is facilitated by the. upwardly flaring construction of the ledge.

The spindle, whirl, cone and collar are supported and revolve in the bolster-bearing and step-bearing and have no other support or contact.

The invention is not limited to the details of construction shown and described, since these may be varied within the spirit of the invention; moreover, the invention is applicable to a bolster and step-bearing of the ordinary journal type.

What I claim is z- 1. A spindle,'a bolster, a ball-bearing in the top of said bolster and. a ball-bearing step in the bottom of said bolster to receive the spindle, and a 'bolster-case in which said bolster is su ported and mounted to move laterally and vertically with the spindle.-

2. A spindle, a bolster, ball-bearings in the top and bottomof said bolster to receive the spindle, the ball-bearing in the bottom being a step or supporting bearing, a bolstercase in which said bolster, is supported and mounted to move laterally and verticall with the s indle, and means to fix the b0 ster in the olster-case to prevent the bolster from rotating with the spindle.

3. A spindle, a ball-bearing bolster there-. for, a contracted, cylindrical sleeve-whirl into which the up er ortion of the bolster extends, the spin 'le, bolster and whirl arwhy, and means to limit their vertical movement.

4'. A spindle, a bearing therefor, and a vided with a horizontally-extending flange within the counterbore in the whirl-base, and a stop to engage the flange without contact with the whirl.

5. A spindle, a contracted cylindrical sleeve-whirl, a whirl-base recessed to receive and holdthe sleeve-whirl and having a horizontally-extending flange, said whirl being of a smaller diameter than the cylindrical portion of the whirl-base, and a stop to engage the flange independently of the sleevewhirl.

-6. An adjustable bolster, having abolsterbearing at its u per end and a step-bearing at its lower our a spindle arranged in said bearings, a bolster-case in which the bolster is arranged to move laterally and vertically with the spindle, and means for positively restraining the bolster from rotating with the spindle.

justable to vary the bolsters length relatively to'the spindle, and having a bolsterbearing at its 11 per end and a step-bearing at its lower en a spindle mounted in said bearings, a bolster-case in which the bolster is mounted to move laterally and vertically with the spindle, and means for positively locking the adjustment of the bolster in said bolster-case.

8. A spindle, a bolster, a ball-bearing arball-bearing step in the bottom of said bolsaid bolster adapted to move laterally and vertically up and down insaid bolster-case, and means independent of the ball-bearings to limit the downward movement of the spindle in said bolster.

9. A spindle, a. two-part bolster adjustsaidspindle, and a stop-collar on the spindle adapted to come into contact with the lower part of the bolster 'to' limit the downward movement of .the spindle in its bolster.

10. A spindle, a bolster-case, a flexible spring bolster suspended in said bolster-case and containing a ball-bearing near its top "and a ball-bearing step at its bottom to receive and sustain the spindle, and means for adjusting said bearings and locking the adjustment, said bolster-case provided with means to prevent the bolster from rotating. with the spindle.

containing up er and lower ball-bearings for the spindle, t e u per bearing taking the upward thrust of the spindle and thelower bearing constituting a step for said spindle, and means for adjusting said bearings, combined with a spindle arrangedin said bolster whirl-base mounted upon the spindle and proi and upon the said bearings.

12. A bolster-case, a flexible spring bolster said whirlbase counterbored, a whirl inserted- 7. A two-part bolster,-whose parts. are ad I ster to receive the spindle, a bolster-case,

able to vary its length with relation to the spindle, bearings in said bolster to support 1 1. A bolster-case, a flexible spring bolster ranged in the top of the said bolster and a well and a counterbore in the upper end of com osed of an internally screwthreaded said oil-Well, and a, bolster having a section seated in said counterbore and containing a bearing forthe spindle, and another section made flexible laterally and longitudinally and connected with the section seated in the counterbore.

14 A spindle, a bolster-case, and a bolster sectlon fitted rigidly in the bolster-case, and a flexible, spring, section rovided with an external screwthread and tted to the fixed larged upper end, an 11 section, and bearings for the spindle in these two bolster sections.

15. A spindle, a bolster having an enper ball-bearing arranged in said end, a ba l-bearing step in the lower end of said bolster, a contracted cylindrical sleeve-whirl encircling and extending below and inclosing the said upper ballbearing, a spindle mounted and sustained in said bearings, the spindle,- whirl, and bolster movable vertically together, and means to limit such movement.

In testimony whereof I have hereunto set my hand this seventh day of February A. D.

CHARLES H. CHAPMAN. Witnesses:

B. L. NEWMAN, J. E, MURPHY. 

